Weaknesses of type CWE-434

3,255 results

Upload sem restrição de arquivo com tipo perigoso

Ocorre quando uma aplicação aceita upload de arquivos sem validar adequadamente seu tipo, extensão ou conteúdo. Um atacante pode enviar executáveis, scripts ou outros arquivos maliciosos, que serão armazenados ou executados no servidor, comprometendo sua integridade e segurança.

Example

Um formulário de perfil aceita qualquer arquivo como 'foto do usuário' sem checar extensão ou MIME type. Um atacante envia um arquivo .exe ou .php renomeado como .jpg, que é salvo no diretório web e posteriormente executado quando acessado, permitindo execução de código remoto.

How to mitigate

Valide uploads checando MIME type real (não apenas extensão), restrinja tipos permitidos de forma explícita, armazene arquivos fora da raiz web, desabilite execução de scripts no diretório de upload e considere usar vírus scanner. Implemente whitelist rigorosa, nunca blacklist.

CVE-2017-3189—The dotCMS administration panel, versions 3.7.1 and earlier, "Push Publishing" feature in Enterprise Pro is vulnerable to arbitrary file uploadEPSS 6.5%CVE-2025-6058CRITICALWPBookit <= 1.0.4 - Unauthenticated Arbitrary File UploadEPSS 6.2%CVE-2020-20969HIGHFile Upload vulnerability in PluckCMS v.4.7.10 allows a remote attacker to execute arbitrary code via the trashcan_restoreitem.php file.EPSS 6.2%CVE-2024-2561MEDIUM74CMS Company Logo Index.php#sendCompanyLogo unrestricted uploadEPSS 6.1%CVE-2021-37608—Arbitrary file upload vulnerability in OFBizEPSS 6.0%CVE-2025-3515HIGHDrag and Drop Multiple File Upload for Contact Form 7 <= 1.3.8.9 - Unauthenticated Arbitrary File Upload via Insufficient Blacklist ChecksEPSS 6.0%CVE-2023-5144MEDIUMD-Link DAR-7000/DAR-8000 updateos.php unrestricted uploadEPSS 6.0%CVE-2023-0455HIGHUnrestricted Upload of File with Dangerous Type in unilogies/bumsysEPSS 5.9%CVE-2024-2667CRITICALInstaWP Connect – 1-click WP Staging & Migration <= 0.1.0.22 - Unauthenticated Arbitrary File UploadEPSS 5.7%CVE-2024-0300MEDIUMByzoro Smart S150 Management Platform HTTP POST Request userattestation.php unrestricted uploadEPSS 5.7%CVE-2026-53787CRITICALAmasty Order Attributes for Magento 2 < 4.0.0 Unauthenticated Arbitrary File UploadEPSS 5.6%CVE-2022-44384HIGHAn arbitrary file upload vulnerability in rconfig v3.9.6 allows attackers to execute arbitrary code via a crafted PHP file.EPSS 5.6%CVE-2026-21877CRITICALn8n is vulnerable to Remote Code Execution via Arbitrary File WriteEPSS 5.4%CVE-2015-10137CRITICALWebsite Contact Form With File Upload <= 1.3.4 - Arbitrary File UploadEPSS 5.4%CVE-2021-4449CRITICALZoomSounds <= 5.96 - Unauthenticated Arbitrary File UploadEPSS 5.4%CVE-2020-24407CRITICALArbitrary code execution via file import functionalityEPSS 5.3%CVE-2021-36741HIGHAn improper input validation vulnerability in Trend Micro Apex One, Apex One as a Service, OfficeScan XG, and Worry-Free Business Security 1EPSS 5.0%KEVCVE-2026-1306CRITICALmidi-Synth <= 1.1.0 - Unauthenticated Arbitrary File Upload via 'export' AJAX ActionEPSS 4.8%CVE-2012-10020CRITICALFoxyPress <= 0.4.2.1 - Arbitrary File UploadEPSS 4.8%CVE-2021-39151HIGHXStream is vulnerable to an Arbitrary Code Execution attackEPSS 4.7%